Almost all of these images reveal their (or my) intent. Some don’t—No. 45 is of (mostly) sportswriters on the roof of Ebbets Field stadium, trying to get a better view of the Brooklyn Dodgers game and a bit nervous about their footing.
Most if not all of the others are self-explanatory.
It would have been easy to do this with just cops or construction workers, but I wanted to show as wide a range of workers as possible. If there are any that are puzzling to you let me know and we’ll try to clear it up.